ComFlor 60 (CF60) Composite Steel Decking – 600mm Cover Width

ComFlor 60 Steel Decking

ComFlor 60 ( CF60) steel decking is the most widely specified composite floor deck in the UK, trusted across commercial, residential, and mixed-use developments. As a 60mm trapezoidal profile, it offers an ideal balance of span performance, fire rating, and installation efficiency, making it the go-to choice for structural engineers and contractors alike.

Designed to meet the requirements of most building projects, ComFlor 60 enables a 120mm slab depth for a 60-minute fire rating, while delivering reliable unpropped spans suited to standard beam grids. Its 600mm cover width keeps sheets lightweight and easy to install, while the profile geometry ensures consistent shear stud positioning without additional site adjustments.

Optional features such as pre-closed ends for pre-studded beams and Colorcoat FD finishes for exposed soffits further enhance its versatility, making ComFlor 60 suitable for everything from large commercial offices to multi-storey residential developments.

ComFlor 60 Steel Decking Suppliers UK

RMD Profiles supplies ComFlor 60 steel decking across the UK with fast lead times, nationwide delivery, and expert support. Whether for commercial, residential, or mixed-use developments, we provide reliable supply direct to site.

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ComFlor 60  prices start from £19/m² (supply only)

 

 

Key Benefits

• 60mm deep combined round-shouldered trapezoidal profile, 600mm cover width
• Most widely specified new-generation composite floor deck in the UK
• Excellent span capability: superior resistance to compressive buckling compared to traditional trapezoidal decks
• 120mm minimum slab depth achievable for a 60-minute fire rating with normal weight concrete
• Central shear stud placement guaranteed by the trough geometry, minimising site checking
• Round-shouldered combined profile enables easy service attachment from the soffit without drilling
• Low concrete volume for the slab depth, reducing wet dead loads and concrete costs
• Pre-closed ends option available, particularly suited to pre-studded beams
• Colorcoat FD pre-finished soffit option for architecturally exposed ceiling applications
• 600mm cover width keeps sheet weights in line with Health and Safety handling guidelines
• Available in 0.9mm, 1.0mm, and 1.2mm gauges in S350 grade steel
• CE and UKCA certified, section properties to BS 5950 and Eurocode

Profile Specification

• Profile depth: 60mm
• Cover width: 600mm
• Pitch: 300mm
• Valley width: 120mm
• Crown width: 130mm
• Available gauges: 0.9mm, 1.0mm, 1.2mm
• Steel grade: S350 (Galvatite Z275)

Section properties conform to BS 5950 and Eurocode. Load and span tables are produced to Eurocode requirements. Full design can be carried out using ComFlor 9 design software, which supports both Eurocode and British Standard design.

Sectional Properties

Section properties conform to BS 5950 and Eurocode. Source: ComFlor 60 product datasheet.

Panel Weight Reference

Approximate weight of a single ComFlor 60 sheet at 3 metres length and 600mm cover width (panel area = 1.80 m²). The lightweight profile means operatives can lay deck quickly without mechanical assistance on the majority of projects.

Concrete Volume per m²

Eurocode density values: normal weight concrete (NWC) wet 25 kN/m³, dry 24 kN/m³; lightweight concrete (LWC) wet 20 kN/m³, dry 19 kN/m³. Deck and mesh weight not included. Ponding allowance not included. Source: ComFlor 60 datasheet (Eurocode values).

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Fire Performance

Fire design is in accordance with SCI NCCI PN005 (Eurocode) and SCI Publication P359. Two fire design methods are available in the ComFlor 9 design software: the Mesh and Deck Fire Method (mesh reinforcement only) and the Bar Fire Method (reinforcement bars in each trough, 25mm above the trough base). The Bar Fire Method is required for single-span single-slab configurations and can extend achievable spans at higher fire periods.

The minimum slab depths below are indicative for unpropped construction with normal weight concrete. The 120mm NWC entry for a 60-minute rating is achievable with the Mesh and Deck Fire Method, noting that at this slab depth the mesh cover is reduced to 25mm rather than the standard 30mm. Always verify against project-specific span and load tables.

Indicative values based on fire insulation requirements per SCI P359. Actual minimum slab depths depend on span, applied load, gauge, and fire design method. Note: the 120mm NWC slab requires mesh cover at 25mm rather than the standard 30mm. Trough bar reinforcement may be required at longer spans or higher fire periods. Always verify with project-specific span and fire tables. Contact our team to confirm requirements for your project.

Finishes and Options

• Galvanised Z275 (Galvatite) — standard coating to BS EN 10346 S350GD+Z275, suitable for internal floors in non-aggressive environments
• Pre-closed ends — factory-applied end closure, particularly suited to pre-studded beams and situations where the deck spans onto a beam already fitted with shear studs. Eliminates the need for on-site filler blocks and gives a clean bearing detail. ComFlor 60 with closed ends can provide cover to the top flange of the supporting beam in accordance with SCI P375 guidance, with potential to reduce or remove the requirement for fire protection to the beam top flange.
• Colorcoat FD pre-finished soffit — factory-applied colour coating to the deck soffit for applications where no suspended ceiling is specified. Available in a range of colours. Produces a clean, consistent ceiling finish without a separate decoration trade.

Why Specify ComFlor 60 Steel Decking?

ComFlor 60 has become the most widely specified composite floor decking system in the UK because it performs reliably across the majority of commercial construction scenarios. Rather than being a compromise, it is often the optimal choice for projects requiring efficient spans, fire compliance, and reduced structural weight.

A key advantage is its ability to achieve a 120mm slab depth for a 60-minute fire rating, which is highly competitive for a 60mm trapezoidal profile. At this depth, the concrete volume is approximately 0.088 m³/m², with a wet concrete dead load of 2.21 kN/m², helping reduce overall structural weight. Across large floor plates, this translates into smaller beams, lower column loads, and more efficient foundation design.

The round-shouldered profile geometry provides excellent resistance to compressive buckling during construction. This allows ComFlor 60 to achieve longer unpropped spans than many traditional trapezoidal decks, improving installation speed and reducing the need for temporary works.

For projects using pre-studded beams, the closed ends option ensures the decking fits cleanly over shear studs without on-site modification. This improves installation consistency while supporting beam top flange fire protection benefits in line with SCI P375, potentially removing the need for additional fire protection measures.

Case Studies

ComFlor 60 has been used on a wide range of projects across the UK and internationally, from high-rise residential towers to large-scale commercial office developments. For project examples, visit our case studies page.

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Typical Applications

• Commercial office and business park developments across all storey heights
• Multi-storey residential and mixed-use buildings where span efficiency and a shallow slab are both priorities
• Projects using pre-studded beams, where the factory closed ends option simplifies installation and maintains a clean bearing detail
• Architecturally exposed soffit applications using the Colorcoat FD pre-finished option
• Any steel-frame project where an unpropped span of up to approximately 3.5 to 4.5m is required and a 120mm or greater slab suits the fire and structural design

Compliance and Standards

• Section properties conform to BS 5950 and Eurocode
• Load and span tables produced to Eurocode requirements; ComFlor 9 software supports both Eurocode and British Standard design
• Fire design in accordance with SCI NCCI PN005 and SCI Publication P359
• Closed ends beam top flange fire protection benefit per SCI Publication P375
• Deck material to BS EN 10346 S350GD+Z275
• Anti-crack mesh requirements to BS EN 1994-1-1 Clause 9.8.1(2)
• Supplied in accordance with the BCSA Code of Practice for metal decking and stud welding

Why Choose RMD Profiles?

Since 2009, RMD Profiles has supported thousands of UK contractors, engineers, and developers with dependable roof and floor decking systems. We combine a wide stocked product range with genuine technical expertise, fast-track supply, and a level of service that keeps projects moving.

• One of the widest stocked ranges of structural decking in the UK
• Exclusive Buy Back Scheme for surplus materials
• Certified stud welding and edge trim expertise, in line with BCSA and SCI guidelines
• Fast-track supply with 24-hour delivery available on stocked lines (subject to stock)
• Trusted partner on over 10,000 UK projects, from hospitals to high-rises

Further Reading and Guidance

The resources below are a useful next step whether you are working through profile selection, planning an installation, or finalising edge details for a ComFlor 60 project.

• Composite Floor Decking in the UK: Clear Choices, Faster Floors
  A practical guide to composite floor decking selection in the UK market, covering how profile depth, span, and fire rating decisions are made and how to identify the right product for your project. If you are comparing ComFlor 60 with ComFlor 51+, ComFlor 80, or a re-entrant profile, this article covers the key trade-offs in plain language.
• The Many Uses of Edge Trim in Metal Deck Construction
  Edge trim is one of the most frequently overlooked elements of a floor deck installation. This guide explains the different types available and when each is appropriate, including the slab edge, construction joint, and void-forming applications that are directly relevant to ComFlor 60 projects.

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